New! View global litigation for patent families

GB2125874A - Solenoid operated locks - Google Patents

Solenoid operated locks Download PDF

Info

Publication number
GB2125874A
GB2125874A GB8223697A GB8223697A GB2125874A GB 2125874 A GB2125874 A GB 2125874A GB 8223697 A GB8223697 A GB 8223697A GB 8223697 A GB8223697 A GB 8223697A GB 2125874 A GB2125874 A GB 2125874A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
latch
bolt
solenoid
member
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8223697A
Other versions
GB2125874B (en )
Inventor
Michael David Dunn
Brian Arthur Kay
Original Assignee
Michael David Dunn
Brian Arthur Kay
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0607Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving pivotally or rotatively
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable

Abstract

A lock has a bolt (20) controlled by a solenoid (16). In the forward position the bolt co-operates with a latch (30) via an intermediate latch- engaging member (24) which is free of the bolt but which can move to contact the bolt and thus prevent the latch being removed until the bolt is retracted. A signalling switch (19) can be provided to indicate the state of operation of the lock. The lock may be floor located with a latch-receiving opening (36) uppermost for locking a movable window safety grill. <IMAGE>

Description

SPECIFICATION Solenoid operated locks This invention relates to solenoid operable locks of the type comprising a bolt controlled by the solenoid and a removable latch co-operating with the bolt.

The invention has arisen in the course of improving locks for window safety grills. Known locks in this context tend to suffer from the problems of the bolt either not easily entering the latch or not easily becoming withdrawn from the latch. As the power available to a reasonably dimensioned solenoid is limited it is possible for either situation to be troublesome.

The present invention deals with these problems and it provides a solenoid operable lock comprising a bolt controlled by the solenoid and a removable latch co-operating with the bolt characterised in that, to secure the lock, the bolt is movable to a forward position and at that position co-operates with the latch via a movable intermediate latch engaging member which is free of the bolt but which can move to contact the bolt and thus prevent the latch being removed until the bolt is retracted.

One form of the present invention will now be described with reference to the accompanying drawing in which: Fig. 1 is a plan view; and Fig. 2 is a section on the line Il-Il of Fig. 1.

In Fig. 1 an elongate body 10 has two compartments 11, 12. Compartment 11 is defined by a "NYLON" end bearing block 13 and an intermediate "NYLON" bearing block 14.

Compartment 12 is defined by block 14 and an end 15 of the body 10.

Compartment 12 houses a low voltage solenoid having a coil 16, plunger 17, and return spring 1 8 together with a switch 19. The plunger carries two bolts 20, 21 in approximate counter balance on an arm 22. The bolt 20 is the bolt of the lock and passes through the bearing block 14. The bolt 21 reaches to the switch 1 9 which it can operate to indicate whether the plunger of the solenoid has operated or not. The bolt 20 has its forward end in the compartment 11. Bolt 21 moves in a NYLON block 21 a.

Compartment 11 houses a rocking intermediate latch engaging member 24. This can be formed as a part of an extrusion having a crosssectional shape as seen in Fig. 2. The member 24 is movable on pivots 25 in the bearing blocks 13, 14 and it has, at its upper end a ball latch 26 and spring 27. The ball of latch 26 engages in a recess 28 in the block 13 and when so engaged the member 24 is free of the bolt 20 (this is best seen in Fig. 2).

Fig. 2 shows a latch 30 engaged in the lock.

The latch has a bulbous end 31 which engages in a recess 32 of the member 24.

Fig. 1 shows the lock in the locked position with the bolt 20 in the forward position but the latch 30 has been omitted. Fig. 2 shows the lock in the locked position and with the latch 30 engaged in the lock.

The operation of the lock wil! now be described starting from the position shown in the drawings.

First, if anybody attempts to raise the latch 30 then the rocking member 24 pivots back against the bolt 20 but it does not pivot enough to release the latch. The latch is therefore held secure by the bolt 20 with which it co-operates via the member 24.

If now it is required to release the latch, the solenoid coil 1 6 is energised and the bolt 20 is drawn back. The latch 30 can now be raised and the rocking member 24 pivots back against the body 10 unimpeded by the bolt. The solenoid coil is de-energised when the latch 31 is clear of the lock and the spring 18 on the solenoid causes the bolt to contact the side face of member 24 and to hold the member 24 in a position to accept the latch 31 when reinserted. The member 24 is also helped to be retained in the pivoted back position by the ball 26 of the ball latch acting in a recess 23 in the block 13.

If it now required to re-engage the latch 31 in the lock the solenoid coil 1 6 is re-energised and this frees rocking member 24 and the latch can be lowered and it co-operates with the member 24 by contacting the foot of the member 24. This causes the member 24 to pivot to take up the position shown in Fig. 2 and when the coil 1 6 is de-energised the bolt falls in behind the member 24 as shown in Fig. 1 and is clear of the member 24.

It is seen that for operating the bolt 20 there is no rubbing friction with a latch. The only friction that arises is in the plunger of the solenoid and where the bolt 20 passes through bearing block 14. These points of friction can be carefully designed, protected, and maintained to have a low and consistent frictional force well within the design capabilities of the solenoid to overcome.

Subsidiary features include the bolt 21 which actuates the switch 1 9. This indicates whether the plunger of the solenoid is in the forward or retracted position.

The body 10 has a shallow slot 32 cut into it and the arm 22 has a short projection 33 so that a tool (such as a screwdriver) can be inserted through the slot and into the body 10 to actuate plunger 1 7 of the solenoid should there be a solenoid failure.

The body 10 has a cover plate 34 with a latch receiving opening 35 uppermost.

The latch 30 can be part of a window security grill. It could also serve as a sliding door lock on a vertical stile, a stronger ball latch and ball latch spring then being fitted.

When used with a window safety grill system comprising a number of grills and locks, the solenoid coils 1 6 and switches 1 9 of the locks are wired through terminal blocks 36 to a control box having a lockabie operating handle and monitoring lights so that the locks can be operated remotely.

1. A solenoid operable lock comprising a bolt

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Solenoid operated locks This invention relates to solenoid operable locks of the type comprising a bolt controlled by the solenoid and a removable latch co-operating with the bolt. The invention has arisen in the course of improving locks for window safety grills. Known locks in this context tend to suffer from the problems of the bolt either not easily entering the latch or not easily becoming withdrawn from the latch. As the power available to a reasonably dimensioned solenoid is limited it is possible for either situation to be troublesome. The present invention deals with these problems and it provides a solenoid operable lock comprising a bolt controlled by the solenoid and a removable latch co-operating with the bolt characterised in that, to secure the lock, the bolt is movable to a forward position and at that position co-operates with the latch via a movable intermediate latch engaging member which is free of the bolt but which can move to contact the bolt and thus prevent the latch being removed until the bolt is retracted. One form of the present invention will now be described with reference to the accompanying drawing in which: Fig. 1 is a plan view; and Fig. 2 is a section on the line Il-Il of Fig. 1. In Fig. 1 an elongate body 10 has two compartments 11, 12. Compartment 11 is defined by a "NYLON" end bearing block 13 and an intermediate "NYLON" bearing block 14. Compartment 12 is defined by block 14 and an end 15 of the body 10. Compartment 12 houses a low voltage solenoid having a coil 16, plunger 17, and return spring 1 8 together with a switch 19. The plunger carries two bolts 20, 21 in approximate counter balance on an arm 22. The bolt 20 is the bolt of the lock and passes through the bearing block 14. The bolt 21 reaches to the switch 1 9 which it can operate to indicate whether the plunger of the solenoid has operated or not. The bolt 20 has its forward end in the compartment 11. Bolt 21 moves in a NYLON block 21 a. Compartment 11 houses a rocking intermediate latch engaging member 24. This can be formed as a part of an extrusion having a crosssectional shape as seen in Fig. 2. The member 24 is movable on pivots 25 in the bearing blocks 13, 14 and it has, at its upper end a ball latch 26 and spring 27. The ball of latch 26 engages in a recess 28 in the block 13 and when so engaged the member 24 is free of the bolt 20 (this is best seen in Fig. 2). Fig. 2 shows a latch 30 engaged in the lock. The latch has a bulbous end 31 which engages in a recess 32 of the member 24. Fig. 1 shows the lock in the locked position with the bolt 20 in the forward position but the latch 30 has been omitted. Fig. 2 shows the lock in the locked position and with the latch 30 engaged in the lock. The operation of the lock wil! now be described starting from the position shown in the drawings. First, if anybody attempts to raise the latch 30 then the rocking member 24 pivots back against the bolt 20 but it does not pivot enough to release the latch. The latch is therefore held secure by the bolt 20 with which it co-operates via the member 24. If now it is required to release the latch, the solenoid coil 1 6 is energised and the bolt 20 is drawn back. The latch 30 can now be raised and the rocking member 24 pivots back against the body 10 unimpeded by the bolt. The solenoid coil is de-energised when the latch 31 is clear of the lock and the spring 18 on the solenoid causes the bolt to contact the side face of member 24 and to hold the member 24 in a position to accept the latch 31 when reinserted. The member 24 is also helped to be retained in the pivoted back position by the ball 26 of the ball latch acting in a recess 23 in the block 13. If it now required to re-engage the latch 31 in the lock the solenoid coil 1 6 is re-energised and this frees rocking member 24 and the latch can be lowered and it co-operates with the member 24 by contacting the foot of the member 24. This causes the member 24 to pivot to take up the position shown in Fig. 2 and when the coil 1 6 is de-energised the bolt falls in behind the member 24 as shown in Fig. 1 and is clear of the member 24. It is seen that for operating the bolt 20 there is no rubbing friction with a latch. The only friction that arises is in the plunger of the solenoid and where the bolt 20 passes through bearing block 14. These points of friction can be carefully designed, protected, and maintained to have a low and consistent frictional force well within the design capabilities of the solenoid to overcome. Subsidiary features include the bolt 21 which actuates the switch 1 9. This indicates whether the plunger of the solenoid is in the forward or retracted position. The body 10 has a shallow slot 32 cut into it and the arm 22 has a short projection 33 so that a tool (such as a screwdriver) can be inserted through the slot and into the body 10 to actuate plunger 1 7 of the solenoid should there be a solenoid failure. The body 10 has a cover plate 34 with a latch receiving opening 35 uppermost. The latch 30 can be part of a window security grill. It could also serve as a sliding door lock on a vertical stile, a stronger ball latch and ball latch spring then being fitted. When used with a window safety grill system comprising a number of grills and locks, the solenoid coils 1 6 and switches 1 9 of the locks are wired through terminal blocks 36 to a control box having a lockabie operating handle and monitoring lights so that the locks can be operated remotely. CLAIMS
1. A solenoid operable lock comprising a bolt controlled by the solenoid and a removable latch cooperating with the bolt characterised in that, to secure the lock, the bolt (20) is movable to a forward position and at that position co-operates with the latch (30) via a movable intermediate latch engaging member (24) which is free of the bolt but which can move to contact the bolt and thus prevent the latch being removed untii the bolt is retracted.
2. A lock as claimed in claim 1 in which the intermediate latch engaging member is moved to a position free of the bolt in the forward position by virtue of having a shape which co-operates with the latch member as it is inserted in the lock.
3. A lock as claimed in claim 1 or 2 in which the latch engaging member is held free of the bolt by a ball catch when the latch is inserted in the lock.
4. A lock as claimed in any preceding claim in which the bolt is supported eccentrically relative to a plunger in the solenoid and is counterbalanced at least in part by a further bolt (21) which moves with the plunger to operate a signalling switch.
5. A lock as claimed in claim 1 in which the intermediate latch engaging member is pivoted between a position (the latch engaging position) at which it is free of the bolt but the bolt lies behind it and prevents it releasing the latch, to a position (the latch release and insert position) at which it lies in the path of movement of the bolt but the bolt lies to the side of it.
6. A lock substantially as hereinbefore described with reference to the accompanying drawings.
7. A lock as claimed in any preceding claim disposed in a floor with a latch receiving opening (35) uppermost and the latch (30) secured to the base of a vertically movable window safety grill.
GB8223697A 1982-08-17 1982-08-17 Solenoid operated locks Expired GB2125874B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8223697A GB2125874B (en) 1982-08-17 1982-08-17 Solenoid operated locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8223697A GB2125874B (en) 1982-08-17 1982-08-17 Solenoid operated locks

Publications (2)

Publication Number Publication Date
GB2125874A true true GB2125874A (en) 1984-03-14
GB2125874B GB2125874B (en) 1985-08-14

Family

ID=10532361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8223697A Expired GB2125874B (en) 1982-08-17 1982-08-17 Solenoid operated locks

Country Status (1)

Country Link
GB (1) GB2125874B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026340A1 (en) * 1995-02-23 1996-08-29 Robert Bosch (Australia) Pty. Ltd. A lock assembly
US8752870B2 (en) 2012-08-23 2014-06-17 Brandt Wolf Remote-controlled security bar
US9062479B2 (en) 2012-08-23 2015-06-23 Brandt Wolf Remote-controlled security apparatus including a security bar
US9603506B2 (en) 2006-09-15 2017-03-28 Acclarent, Inc. Methods and devices for facilitating visualization in a surgical environment
US9610428B2 (en) 2004-04-21 2017-04-04 Acclarent, Inc. Devices, systems and methods useable for treating frontal sinusitis
US9615775B2 (en) 2007-04-30 2017-04-11 Acclarent, Inc. Methods and devices for ostium measurements
US9629656B2 (en) 2006-05-17 2017-04-25 Acclarent, Inc. Adapter for attaching electromagnetic image guidance components to a medical device
US9629684B2 (en) 2013-03-15 2017-04-25 Acclarent, Inc. Apparatus and method for treatment of ethmoid sinusitis
US9636258B2 (en) 2009-03-31 2017-05-02 Acclarent, Inc. System and method for treatment of non-ventilating middle ear by providing a gas pathway through the nasopharynx
US9649477B2 (en) 2004-04-21 2017-05-16 Acclarent, Inc. Frontal sinus spacer
US9750401B2 (en) 2008-07-30 2017-09-05 Acclarent, Inc. Paranasal ostium finder devices and methods
US9826999B2 (en) 2004-04-21 2017-11-28 Acclarent, Inc. Methods and apparatus for treating disorders of the ear nose and throat
US9861793B2 (en) 2008-03-10 2018-01-09 Acclarent, Inc. Corewire design and construction for medical devices

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10105592A1 (en) 2001-02-06 2002-08-08 Achim Goepferich Placeholder for drug release in the frontal sinus
US8317816B2 (en) 2002-09-30 2012-11-27 Acclarent, Inc. Balloon catheters and methods for treating paranasal sinuses
US9089258B2 (en) 2004-04-21 2015-07-28 Acclarent, Inc. Endoscopic methods and devices for transnasal procedures
US7803150B2 (en) 2004-04-21 2010-09-28 Acclarent, Inc. Devices, systems and methods useable for treating sinusitis
US9101384B2 (en) 2004-04-21 2015-08-11 Acclarent, Inc. Devices, systems and methods for diagnosing and treating sinusitis and other disorders of the ears, Nose and/or throat
US8864787B2 (en) 2004-04-21 2014-10-21 Acclarent, Inc. Ethmoidotomy system and implantable spacer devices having therapeutic substance delivery capability for treatment of paranasal sinusitis
US20060004323A1 (en) 2004-04-21 2006-01-05 Exploramed Nc1, Inc. Apparatus and methods for dilating and modifying ostia of paranasal sinuses and other intranasal or paranasal structures
US7361168B2 (en) 2004-04-21 2008-04-22 Acclarent, Inc. Implantable device and methods for delivering drugs and other substances to treat sinusitis and other disorders
US7462175B2 (en) 2004-04-21 2008-12-09 Acclarent, Inc. Devices, systems and methods for treating disorders of the ear, nose and throat
US9351750B2 (en) 2004-04-21 2016-05-31 Acclarent, Inc. Devices and methods for treating maxillary sinus disease
US9399121B2 (en) 2004-04-21 2016-07-26 Acclarent, Inc. Systems and methods for transnasal dilation of passageways in the ear, nose or throat
US7654997B2 (en) 2004-04-21 2010-02-02 Acclarent, Inc. Devices, systems and methods for diagnosing and treating sinusitus and other disorders of the ears, nose and/or throat
US8702626B1 (en) 2004-04-21 2014-04-22 Acclarent, Inc. Guidewires for performing image guided procedures
US8951225B2 (en) 2005-06-10 2015-02-10 Acclarent, Inc. Catheters with non-removable guide members useable for treatment of sinusitis
US8747389B2 (en) 2004-04-21 2014-06-10 Acclarent, Inc. Systems for treating disorders of the ear, nose and throat
US8932276B1 (en) 2004-04-21 2015-01-13 Acclarent, Inc. Shapeable guide catheters and related methods
US7419497B2 (en) 2004-04-21 2008-09-02 Acclarent, Inc. Methods for treating ethmoid disease
US9554691B2 (en) 2004-04-21 2017-01-31 Acclarent, Inc. Endoscopic methods and devices for transnasal procedures
US20060063973A1 (en) 2004-04-21 2006-03-23 Acclarent, Inc. Methods and apparatus for treating disorders of the ear, nose and throat
US7410480B2 (en) 2004-04-21 2008-08-12 Acclarent, Inc. Devices and methods for delivering therapeutic substances for the treatment of sinusitis and other disorders
US20070167682A1 (en) 2004-04-21 2007-07-19 Acclarent, Inc. Endoscopic methods and devices for transnasal procedures
US8146400B2 (en) 2004-04-21 2012-04-03 Acclarent, Inc. Endoscopic methods and devices for transnasal procedures
US8114113B2 (en) 2005-09-23 2012-02-14 Acclarent, Inc. Multi-conduit balloon catheter
US9820688B2 (en) 2006-09-15 2017-11-21 Acclarent, Inc. Sinus illumination lightwire device
US8439687B1 (en) 2006-12-29 2013-05-14 Acclarent, Inc. Apparatus and method for simulated insertion and positioning of guidewares and other interventional devices
US8485199B2 (en) 2007-05-08 2013-07-16 Acclarent, Inc. Methods and devices for protecting nasal turbinate during surgery
US7978742B1 (en) 2010-03-24 2011-07-12 Corning Incorporated Methods for operating diode lasers
US9155492B2 (en) 2010-09-24 2015-10-13 Acclarent, Inc. Sinus illumination lightwire device
US9433437B2 (en) 2013-03-15 2016-09-06 Acclarent, Inc. Apparatus and method for treatment of ethmoid sinusitis

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026340A1 (en) * 1995-02-23 1996-08-29 Robert Bosch (Australia) Pty. Ltd. A lock assembly
US9610428B2 (en) 2004-04-21 2017-04-04 Acclarent, Inc. Devices, systems and methods useable for treating frontal sinusitis
US9826999B2 (en) 2004-04-21 2017-11-28 Acclarent, Inc. Methods and apparatus for treating disorders of the ear nose and throat
US9649477B2 (en) 2004-04-21 2017-05-16 Acclarent, Inc. Frontal sinus spacer
US9629656B2 (en) 2006-05-17 2017-04-25 Acclarent, Inc. Adapter for attaching electromagnetic image guidance components to a medical device
US9603506B2 (en) 2006-09-15 2017-03-28 Acclarent, Inc. Methods and devices for facilitating visualization in a surgical environment
US9615775B2 (en) 2007-04-30 2017-04-11 Acclarent, Inc. Methods and devices for ostium measurements
US9861793B2 (en) 2008-03-10 2018-01-09 Acclarent, Inc. Corewire design and construction for medical devices
US9750401B2 (en) 2008-07-30 2017-09-05 Acclarent, Inc. Paranasal ostium finder devices and methods
US9636258B2 (en) 2009-03-31 2017-05-02 Acclarent, Inc. System and method for treatment of non-ventilating middle ear by providing a gas pathway through the nasopharynx
US9062479B2 (en) 2012-08-23 2015-06-23 Brandt Wolf Remote-controlled security apparatus including a security bar
US8752870B2 (en) 2012-08-23 2014-06-17 Brandt Wolf Remote-controlled security bar
US9629684B2 (en) 2013-03-15 2017-04-25 Acclarent, Inc. Apparatus and method for treatment of ethmoid sinusitis

Also Published As

Publication number Publication date Type
GB2125874B (en) 1985-08-14 grant

Similar Documents

Publication Publication Date Title
US3543547A (en) Manually unlocking device of electric lock
US3455127A (en) Lock control system
US3521921A (en) Electric lock or electric door opener
US3576119A (en) Electromechanical door lock system
US5536173A (en) Charge connector for electric vehicles
US4784415A (en) Locking and unlocking device
US5634677A (en) Power-locking motor-vehicle door latch
US4685709A (en) Deadlocked latch having disc and motor actuators
US5433623A (en) Coupling device of charging connector assembly for electric car
US5953942A (en) Catch mechanism for locks
US5020345A (en) Self-locking electronic lock
US4487439A (en) Magnetic shear locking methods and apparatus
US7007526B2 (en) Electronic clutch assembly for a lock system
US4916927A (en) Lock and method of securing and releasing a member
US3767238A (en) Push plate panic exit device
US3406995A (en) Releasable catch for equipment
US4056277A (en) Electric strike
US3680335A (en) Safety device controlling vehicle locking
US4509347A (en) Door locking system
US5307656A (en) High security electronic dial combination lock
US5033282A (en) Self-locking electronic lock
US4017107A (en) Electric door strike
US4125008A (en) Electrically operated lock
US6786519B2 (en) Swing bolt lock with improved tamper resistance and method of operation
US5123691A (en) Electric lock apparatus for vehicular tool box

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010817